大约有 40,000 项符合查询结果(耗时:0.0585秒) [XML]

https://stackoverflow.com/ques... 

How to Create Multiple Where Clause Query Using Laravel Eloquent?

... '<>', 'value_2'], [COLUMN, OPERATOR, VALUE], ... ]) Personally I haven't found use-case for this over just multiple where calls, but fact is you can use it. Since June 2014 you can pass an array to where As long as you want all the wheres use and operator, you can group them this ...
https://stackoverflow.com/ques... 

Python: fastest way to create a list of n lists

... The probably only way which is marginally faster than d = [[] for x in xrange(n)] is from itertools import repeat d = [[] for i in repeat(None, n)] It does not have to create a new int object in every iteration and is about 15 % faster on my machine. Edi...
https://stackoverflow.com/ques... 

How can I output leading zeros in Ruby?

...counter is known (e.g., n = 3 for counters 1..876), you can do str = "file_" + i.to_s.rjust(n, "0") share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How to close activity and go back to previous activity in android

... I think you are calling finish() method in MainActivity before starting SettingsActivity. The scenario which you have described will occur in following two ways: EITHER You have set android:noHistory = "true" for MainActivity inside Androi...
https://stackoverflow.com/ques... 

Making iTerm to translate 'meta-key' in the same way as in other OSes

... to move one word forward or backward on the shell prompt respectively. Usually, the meta key is mapped to Alt key on Windows and Linux. However, in iTerm, I could not find a way to map this meta key to either Option or Command key on my MacBook Pro. ...
https://stackoverflow.com/ques... 

Android Fragment handle back button press [duplicate]

... When you are transitioning between Fragments, call addToBackStack() as part of your FragmentTransaction: FragmentTransaction tx = fragmentManager.beginTransation(); tx.replace( R.id.fragment, new MyFragment() ).addToBackStack( "tag" ).commit(); If you require more deta...
https://stackoverflow.com/ques... 

How do you version your database schema? [closed]

How do you prepare your SQL deltas? do you manually save each schema-changing SQL to a delta folder, or do you have some kind of an automated diffing process? ...
https://stackoverflow.com/ques... 

How to get the system uptime in Windows? [closed]

...and line utility checks and displays various system statistics such as installation date, installed hotfixes and more. Open a Command Prompt and type the following command: systeminfo You can also narrow down the results to just the line you need: systeminfo | find "System Boot Time:" 3: By ...
https://stackoverflow.com/ques... 

‘ld: warning: directory not found for option’

... Be careful of deleting if you actually need that library path. Verify that the path specified in the error exists. The location of the library on disk may have been moved. – AWrightIV Sep 17 '13 at 21:59 ...
https://stackoverflow.com/ques... 

Using CSS to affect div style inside iframe

... your domain, you can control it, if not, you're locked out. This prevents all kinds of Iframe-based page hijacking. – Diodeus - James MacFarlane Dec 29 '09 at 16:08 2 ...